Method and device in communication node for wireless communication

ABSTRACT

The disclosure provides a method and a device in a communication node for wireless communications. The communication node first receives first information and then receives a first radio signal; only X1 bit(s) in a first bit block is(are) used for generating the first radio signal, the first bit block is obtained as an output of channel coding of a first code block, the first code block includes a positive integer number of bit(s), and the first bit block includes a positive integer number of bit(s); when channel decoding fails, at least X2 bit(s) in the first bit block can be used for decoding of the first code block with combining, the first information is used for determining the X2 bit(s), and the X2 is a positive integer. The disclosure reduces requirements on a buffer and reduces complexity.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of the U.S. patent application Ser.No. 16/919,062, filed on Jul. 1, 2020, which is a continuation ofInternational Application No. PCT/CN2018/071684, filed Jan. 6, 2018, thefull disclosure of which is incorporated herein by reference.

BACKGROUD Technical Field

The disclosure relates to transmission methods and devices in wirelesscommunication systems, and in particular to a transmission method anddevice in non-territorial wireless communication.

Related Art

Application scenarios of future wireless communication systems arebecoming increasingly diversified, and different application scenarioshave different performance requirements on systems. In order to meetdifferent performance requirements of various application scenarios, the3^(rd) Generation Partner Project (3GPP) Radio Access Network (RAN) #72plenary decided to conduct a study of New Radio (NR) (or 5G). The WorkItem (WI) of NR was approved at the 3GPP RAN #75 plenary to standardizethe NR.

In order to adapt to various application scenarios and meet differentrequirements, the 3GPP RAN #75 plenary approved a study item ofNon-Terrestrial Network (NTN) under NR. This study item begins in R15and initiates a WI in R16 to standardize relevant technologies. In NTN,transmission latency is far longer than in terrestrial networks.

SUMMARY

In networks with large transmission latency (for example, NTN), in orderto guarantee data rate, an effective method is to increase the number ofHybrid Automatic Repeat Request (HARQ) processes or increase the lengthof Transmission Time Interval (TTI). However, on the other hand, whileincreasing the number of HARQ processes or increasing the length of TTI,a transport block requires a much larger buffer capability of UE.

In view of the problem that the buffer capability is limited in networkswith large transmission latency, the disclosure provides a solution. Itshould be noted that the embodiments of the base station of thedisclosure and the characteristics in the embodiments may be applied tothe UE if no conflict is incurred, and vice versa. The embodiments ofthe disclosure and the characteristics in the embodiments may bemutually combined arbitrarily if no conflict is incurred.

The disclosure provides a method in a first-type communication node forwireless communication, wherein the method includes:

receiving first information; and

receiving a first radio signal.

Herein, only X1 bit(s) in a first bit block is(are) used for generatingthe first radio signal, the first bit block is obtained as an output ofchannel coding of a first code block, the first code block includes apositive integer number of bit(s), and the first bit block includes apositive integer number of bit(s); when channel decoding fails, at leastX2 bit(s) in the first bit block can be used for decoding of the firstcode block with combining, the first information is used for determiningthe X2 bit(s), and the X2 is a positive integer; or, the firstinformation is used for determining that the X1 bit(s) cannot be usedfor decoding of the first code block with combining when channeldecoding fails; the first information and the first radio signal areboth transmitted through an air interface.

In one embodiment, when processing the first radio signal, thefirst-type communication node determines, according to the firstinformation, the number of bits that can be used for decoding of thefirst code block with combining, so that even if in the condition thatthe first radio signal is erroneously decoded, the first-typecommunication node still can judge whether to buffer the received bit ordetermine how many bits to buffer according to its own buffercapability, thereby reducing the requirements and complexity of buffercapability and providing flexibility of design for terminal equipment.

In one embodiment, it is allowed to buffer no soft bit or a few softbits in the condition that the first radio signal is erroneouslydecoded, which increases the capability of dynamic sharing of a bufferbetween multiple HARQ processes and may greatly reduce the requirementson the buffer.

According to one aspect of the disclosure, the above method furtherincludes:

receiving a first signaling.

Herein, the first signaling is used for indicating time-frequencyresources occupied by the first radio signal, a number of resourceelements included in the time-frequency resources occupied by the firstradio signal is used for determining a number of bits included in thefirst code block, and the first signaling is transmitted through the airinterface.

According to one aspect of the disclosure, the above method furtherincludes:

receiving a second signaling; and

receiving a second radio signal.

Herein, the second signaling is used for determining X3 bit(s) in thefirst bit block, and the X3 bit(s) is(are) used for generating thesecond radio signal; the X2 bit(s) include(s) the X3 bit(s), or aRedundancy Version (RV) corresponding to the X3 bit(s) is equal to 0;the second signaling and the second radio signal are transmitted throughthe air interface.

In one embodiment, the approach of limiting the position ofretransmitted bits or limiting the RV of retransmission duringretransmission may ensure the performance of retransmission under thecondition that the initial transmission buffers no received soft bit orbuffers a few soft bits.

According to one aspect of the disclosure, the above method ischaracterized in that: the first radio signal belongs to a first HARQprocess, and the first information is used for determining a number ofbits in the first HARQ process that can be used for decoding withcombining.

According to one aspect of the disclosure, the above method ischaracterized in that: the first bit block is obtained as a sequentialoutput of channel coding of the first code block, the X2 bit(s) is(are)X2 consecutive bits in the first bit block, and a start position of theX2 bit(s) in the first bit block is predefined.

According to one aspect of the disclosure, the above method ischaracterized in that: the first information is used for determining atarget Modulation Coding Scheme (MCS) set from P MCS sets, an MCSemployed by the first radio signal is one MCS in the target MCS set,each of the P MCS sets includes a positive integer number of MCSs, anytwo of the P MCS sets are different, and the P is a positive integergreater than 1.

In one embodiment, through the design of a new MCS, the negative effectof loss in combining gain caused by buffering no received soft bit orbuffering a few soft bits is reduced as much as possible.

According to one aspect of the disclosure, the above method furtherincludes:

transmitting second information.

Herein, the first information is used for determining a first threshold,a probability that a transport block carried by the first radio signalis erroneously decoded does not exceed the first threshold, the firstthreshold is a positive real number, the second information is used forindicating a channel quality measured based on the first threshold, andthe second information is transmitted through the air interface.

The disclosure provides a method in a second-type communication node forwireless communication, wherein the method includes:

transmitting first information; and

transmitting a first radio signal.

Herein, only X1 bit(s) in a first bit block is(are) used for generatingthe first radio signal, the first bit block is obtained as an output ofchannel coding of a first code block, the first code block includes apositive integer number of bit(s), and the first bit block includes apositive integer number of bit(s); when channel decoding fails, at leastX2 bit(s) in the first bit block can be used for decoding of the firstcode block with combining, the first information is used for determiningthe X2 bit(s), and the X2 is a positive integer; or, the firstinformation is used for determining that the X1 bit(s) cannot be usedfor decoding of the first code block with combining when channeldecoding fails; the first information and the first radio signal areboth transmitted through an air interface.

According to one aspect of the disclosure, the above method furtherincludes:

transmitting a first signaling.

Herein, the first signaling is used for indicating time-frequencyresources occupied by the first radio signal, a number of resourceelements included in the time-frequency resources occupied by the firstradio signal is used for determining a number of bits included in thefirst code block, and the first signaling is transmitted through the airinterface.

According to one aspect of the disclosure, the above method furtherincludes:

transmitting a second signaling; and

transmitting a second radio signal.

Herein, the second signaling is used for determining X3 bit(s) in thefirst bit block, and the X3 bit(s) is(are) used for generating thesecond radio signal; the X2 bit(s) include(s) the X3 bit(s), or aredundancy version corresponding to the X3 bit(s) is equal to 0; thesecond signaling and the second radio signal are transmitted through theair interface.

According to one aspect of the disclosure, the above method ischaracterized in that: the first radio signal belongs to a first HARQprocess, and the first information is used for determining a number ofbits in the first HARQ process that can be used for decoding withcombining.

According to one aspect of the disclosure, the above method ischaracterized in that: the first bit block is obtained as a sequentialoutput of channel coding of the first code block, the X2 bit(s) is(are)X2 consecutive bits in the first bit block, and a start position of theX2 bit(s) in the first bit block is predefined.

According to one aspect of the disclosure, the above method ischaracterized in that: the first information is used for determining atarget MCS set from P MCS sets, an MCS employed by the first radiosignal is one MCS in the target MCS set, each of the P MCS sets includesa positive integer number of MCSs, any two of the P MCS sets aredifferent, and the P is a positive integer greater than 1.

According to one aspect of the disclosure, the above method furtherincludes:

receiving second information.

Herein, the first information is used for determining a first threshold,a probability that a transport block carried by the first radio signalis erroneously decoded does not exceed the first threshold, the firstthreshold is a positive real number, the second information is used forindicating a channel quality measured based on the first threshold, andthe second information is transmitted through the air interface.

The disclosure provides a first-type communication node for wirelesscommunication, wherein the first-type communication node includes:

a first transceiver, to receive first information; and

a first receiver, to receive a first radio signal.

Herein, only X1 bit(s) in a first bit block is(are) used for generatingthe first radio signal, the first bit block is obtained as an output ofchannel coding of a first code block, the first code block includes apositive integer number of bit(s), and the first bit block includes apositive integer number of bit(s); when channel decoding fails, at leastX2 bit(s) in the first bit block can be used for decoding of the firstcode block with combining, the first information is used for determiningthe X2 bit(s), and the X2 is a positive integer; or, the firstinformation is used for determining that the X1 bit(s) cannot be usedfor decoding of the first code block with combining when channeldecoding fails; the first information and the first radio signal areboth transmitted through an air interface.

According to one aspect of the disclosure, the above first-typecommunication node is characterized in that: the first transceiverfurther receives a first signaling; the first signaling is used forindicating time-frequency resources occupied by the first radio signal,a number of resource elements included in the time-frequency resourcesoccupied by the first radio signal is used for determining a number ofbits included in the first code block, and the first signaling istransmitted through the air interface.

According to one aspect of the disclosure, the above first-typecommunication node is characterized in that: the first transceiverfurther receives a second signaling; the first receiver receives asecond radio signal; the second signaling is used for determining X3bit(s) in the first bit block, and the X3 bit(s) is(are) used forgenerating the second radio signal; the X2 bit(s) include(s) the X3bit(s), or a redundancy version corresponding to the X3 bit(s) is equalto 0; the second signaling and the second radio signal are transmittedthrough the air interface.

According to one aspect of the disclosure, the above first-typecommunication node is characterized in that: the first radio signalbelongs to a first HARQ process, and the first information is used fordetermining a number of bits in the first HARQ process that can be usedfor decoding with combining.

According to one aspect of the disclosure, the above first-typecommunication node is characterized in that: the first bit block isobtained as a sequential output of channel coding of the first codeblock, the X2 bit(s) is(are) X2 consecutive bits in the first bit block,and a start position of the X2 bit(s) in the first bit block ispredefined.

According to one aspect of the disclosure, the above first-typecommunication node is characterized in that: the first information isused for determining a target MCS set from P MCS sets, an MCS employedby the first radio signal is one MCS in the target MCS set, each of theP MCS sets includes a positive integer number of MCSs, any two of the PMCS sets are different, and the P is a positive integer greater than 1.

According to one aspect of the disclosure, the above first-typecommunication node is characterized in that: the first transceiverfurther transmits second information; the first information is used fordetermining a first threshold, a probability that a transport blockcarried by the first radio signal is erroneously decoded does not exceedthe first threshold, the first threshold is a positive real number, thesecond information is used for indicating a channel quality measuredbased on the first threshold, and the second information is transmittedthrough the air interface.

The disclosure provides a second-type communication node for wirelesscommunication, wherein the second-type communication node includes:

a second transceiver, to transmit first information; and

a first transmitter, to transmit a first radio signal.

Herein, only X1 bit(s) in a first bit block is(are) used for generatingthe first radio signal, the first bit block is obtained as an output ofchannel coding of a first code block, the first code block includes apositive integer number of bit(s), and the first bit block includes apositive integer number of bit(s); when channel decoding fails, at leastX2 bit(s) in the first bit block can be used for decoding of the firstcode block with combining, the first information is used for determiningthe X2 bit(s), and the X2 is a positive integer; or, the firstinformation is used for determining that the X1 bit(s) cannot be usedfor decoding of the first code block with combining when channeldecoding fails; the first information and the first radio signal areboth transmitted through an air interface.

According to one aspect of the disclosure, the above second-typecommunication node is characterized in that: the second transceiverfurther transmits a first signaling; the first signaling is used forindicating time-frequency resources occupied by the first radio signal,a number of resource elements included in the time-frequency resourcesoccupied by the first radio signal is used for determining a number ofbits included in the first code block, and the first signaling istransmitted through the air interface.

According to one aspect of the disclosure, the above second-typecommunication node is characterized in that: the second transceiverfurther transmits a second signaling; the first transmitter furthertransmits a second radio signal; the second signaling is used fordetermining X3 bit(s) in the first bit block, and the X3 bit(s) is(are)used for generating the second radio signal; the X2 bit(s) include(s)the X3 bit(s), or a redundancy version corresponding to the X3 bit(s) isequal to 0; the second signaling and the second radio signal aretransmitted through the air interface.

According to one aspect of the disclosure, the above second-typecommunication node is characterized in that: the first radio signalbelongs to a first HARQ process, and the first information is used fordetermining a number of bits in the first HARQ process that can be usedfor decoding with combining.

According to one aspect of the disclosure, the above second-typecommunication node is characterized in that: the first bit block isobtained as a sequential output of channel coding of the first codeblock, the X2 bit(s) is(are) X2 consecutive bits in the first bit block,and a start position of the X2 bit(s) in the first bit block ispredefined.

According to one aspect of the disclosure, the above second-typecommunication node is characterized in that: the first information isused for determining a target MCS set from P MCS sets, an MCS employedby the first radio signal is one MCS in the target MCS set, each of theP MCS sets includes a positive integer number of MCSs, any two of the PMCS sets are different, and the P is a positive integer greater than 1.

According to one aspect of the disclosure, the above second-typecommunication node is characterized in that: the second transceiverfurther receives second information; the first information is used fordetermining a first threshold, a probability that a transport blockcarried by the first radio signal is erroneously decoded does not exceedthe first threshold, the first threshold is a positive real number, thesecond information is used for indicating a channel quality measuredbased on the first threshold, and the second information is transmittedthrough the air interface.

In one embodiment, the disclosure mainly has the following technicaladvantages.

The disclosure provides a method for a UE to flexibly utilize the buffercapability. Through this method, the UE may configure the size of abuffer to use or whether to buffer soft bits according to its own buffercapability when the received signal is erroneously decoded, therebyreducing the requirements and complexity of the buffer of the UE andproviding possibilities of increasing HARQ processes or TTI forbuffer-limited UEs or large-latency networks (for example, NTN).

The method in the disclosure improves link performances under thecondition of reducing soft bits buffered or keeping no soft bitbuffered, thereby ensuring the data rate of buffer-limited UEs orlarge-latency networks.

BRIEF DESCRIPTION OF THE DRAWINGS

Other features, purposes and advantages of the disclosure will becomemore apparent from the detailed description of non-restrictiveembodiments taken in conjunction with the following drawings.

FIG. 1 is a flowchart of first information and a first radio signalaccording to one embodiment of the disclosure.

FIG. 2 is a diagram illustrating a network architecture according to oneembodiment of the disclosure.

FIG. 3 is a diagram illustrating a radio protocol architecture of a userplane and a control plane according to one embodiment of the disclosure.

FIG. 4 is a diagram illustrating a first-type communication node and asecond-type communication node according to one embodiment of thedisclosure.

FIG. 5 is a flowchart of transmission of a first radio signal accordingto one embodiment of the disclosure.

FIG. 6 is a diagram illustrating a relationship among a first bit block,X1 bits and X2 bits according to one embodiment of the disclosure.

FIG. 7 is a diagram illustrating a relationship between time-frequencyresources occupied by a first radio signal and a number of bits includedin a first code block according to one embodiment of the disclosure.

FIG. 8 is a diagram illustrating a relationship among a first bit block,X2 bits and X3 bits according to one embodiment of the disclosure.

FIG. 9 is a diagram illustrating a first HARQ process according to oneembodiment of the disclosure.

FIG. 10 is a diagram illustrating a target MCS set according to oneembodiment of the disclosure.

FIG. 11 is a diagram illustrating a channel quality measured based on afirst threshold according to one embodiment of the disclosure.

FIG. 12 is a structure block diagram illustrating a processing device ina first-type communication node according to one embodiment of thedisclosure.

FIG. 13 is a structure block diagram illustrating a processing device ina second-type communication node according to one embodiment of thedisclosure.

DESCRIPTION OF THE EMBODIMENTS

The technical scheme of the disclosure is described below in furtherdetail in conjunction with the drawings. It should be noted that theembodiments in the disclosure and the characteristics of the embodimentsmay be arbitrarily combined if there is no conflict.

Embodiment 1

Embodiment 1 illustrates a flowchart of transmission of firstinformation and a first radio signal according to one embodiment of thedisclosure, as shown in FIG. 1. In FIG. 1, each box represents one step.In Embodiment 1, the first-type communication node in the disclosurefirst receives first information in S101 and then receives a first radiosignal in S102; herein, only X1 bit(s) in a first bit block is(are) usedfor generating the first radio signal, the first bit block is obtainedas an output of channel coding of a first code block, the first codeblock includes a positive integer number of bit(s), and the first bitblock includes a positive integer number of bit(s); when channeldecoding fails, at least X2 bit(s) in the first bit block can be usedfor decoding of the first code block with combining, the firstinformation is used for determining the X2 bit(s), and the X2 is apositive integer; or, the first information is used for determining thatthe X1 bit(s) cannot be used for decoding of the first code block withcombining when channel decoding fails; the first information and thefirst radio signal are both transmitted through an air interface.

In one embodiment, the method further includes:

receiving a first signaling.

Herein, the first signaling is used for indicating time-frequencyresources occupied by the first radio signal, a number of resourceelements included in the time-frequency resources occupied by the firstradio signal is used for determining a number of bits included in thefirst code block, and the first signaling is transmitted through the airinterface.

In one embodiment, the method further includes:

receiving a second signaling; and

receiving a second radio signal.

Herein, the second signaling is used for determining X3 bit(s) in thefirst bit block, and the X3 bit(s) is(are) used for generating thesecond radio signal; the X2 bit(s) includes(s) the X3 bit(s), or aRedundancy Version (RV) corresponding to the X3 bit(s) is equal to 0;the second signaling and the second radio signal are transmitted throughthe air interface.

In one embodiment, the first radio signal belongs to a first HARQprocess, and the first information is used for determining a number ofbits in the first HARQ process that can be used for decoding withcombining.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, the X2 bit(s) is(are)X2 consecutive bits in the first bit block, and a start position of theX2 bit(s) in the first bit block is predefined.

In one embodiment, the first information is used for determining atarget MCS set from P MCS sets, an MCS employed by the first radiosignal is one MCS in the target MCS set, each of the P MCS sets includesa positive integer number of MCSs, any two of the P MCS sets aredifferent, and the P is a positive integer greater than 1.

In one embodiment, the method further includes:

transmitting second information.

Herein, the first information is used for determining a first threshold,a probability that a transport block carried by the first radio signalis erroneously decoded does not exceed the first threshold, the firstthreshold is a positive real number, the second information is used forindicating a channel quality measured based on the first threshold, andthe second information is transmitted through the air interface.

In one embodiment, the first information is transmitted through a higherlayer signaling.

In one embodiment, the first information is transmitted through aphysical layer signaling.

In one embodiment, the first information includes partial or an entiretyof one higher layer signaling.

In one embodiment, the first information includes partial or an entiretyof one physical layer signaling.

In one embodiment, the first information is transmitted through aPhysical Broadcast Channel (PBCH).

In one embodiment, the first information includes one or more fields ina Master Information Block (MIB).

In one embodiment, the first information is transmitted through aDownlink Shared Channel (DL-SCH).

In one embodiment, the first information is transmitted through aPhysical Downlink Shared Channel (PDSCH).

In one embodiment, the first information includes one or more fields inone System Information Block (SIB).

In one embodiment, the first information includes one or more fields inRemaining System Information (RMSI).

In one embodiment, the first information includes partial or an entiretyof one Radio Resource Control (RRC) signaling.

In one embodiment, the first information is broadcast.

In one embodiment, the first information is unicast.

In one embodiment, the first information is cell specific.

In one embodiment, the first information is UE specific.

In one embodiment, the first information is transmitted through aPhysical Downlink Control Channel (PDCCH).

In one embodiment, the first information includes partial or all fieldsof one Downlink Control Information (DCI) signaling.

In one embodiment, the first information is transmitted through a PDCCHscheduling the first radio signal.

In one embodiment, the first information includes partial or all fieldsof a DCI signaling scheduling the first radio signal.

In one embodiment, the phrase that the first information is used fordetermining the X2 bit(s) refers that the first information is used bythe first-type communication node to determine the X2 bit(s).

In one embodiment, the phrase that the first information is used fordetermining the X2 bit(s) refers that the first information indicatesthe X2 bit(s) directly.

In one embodiment, the phrase that the first information is used fordetermining the X2 bit(s) refers that the first information indicatesthe X2 bit(s) indirectly.

In one embodiment, the phrase that the first information is used fordetermining the X2 bit(s) refers that the first information indicatesthe X2 bit(s) explicitly.

In one embodiment, the phrase that the first information is used fordetermining the X2 bit(s) refers that the first information indicatesthe X2 bit(s) implicitly.

In one embodiment, the phrase that the first information is used fordetermining the X2 bit(s) refers that the first information is used forindicating a size of a soft buffer reserved for the first code block bythe first-type communication node, and the size of the reserved softbuffer is used for determining the X2 bit(s).

In one embodiment, the phrase that the first information is used fordetermining the X2 bit(s) refers that the first information is used forindicating a size of a soft buffer reserved for the first code block bythe first-type communication node, and the reserved soft buffer for thefirst code block can buffer X2 bit(s).

In one embodiment, the phrase that the first information is used fordetermining that the X1 bit(s) cannot be used for decoding of the firstcode block with combining when channel decoding fails refers that: thefirst information is used by the first-type communication node todirectly determine that the X1 bit(s) cannot be used for decoding of thefirst code block with combining when channel decoding fails.

In one embodiment, the phrase that the first information is used fordetermining that the X1 bit(s) cannot be used for decoding of the firstcode block with combining when channel decoding fails refers that: thefirst information is used by the first-type communication node toindirectly determine that the X1 bit(s) cannot be used for decoding ofthe first code block with combining when channel decoding fails.

In one embodiment, the phrase that the first information is used fordetermining that the X1 bit(s) cannot be used for decoding of the firstcode block with combining when channel decoding fails refers that: thefirst information indicates explicitly that the X1 bit(s) cannot be usedfor decoding of the first code block with combining when channeldecoding fails.

In one embodiment, the phrase that the first information is used fordetermining that the X1 bit(s) cannot be used for decoding of the firstcode block with combining when channel decoding fails refers that: thefirst information indicates implicitly that the X1 bit(s) cannot be usedfor decoding of the first code block with combining when channeldecoding fails.

In one embodiment, the phrase that the first information is used fordetermining that the X1 bit(s) cannot be used for decoding of the firstcode block with combining when channel decoding fails refers that: thefirst information is used by the first-type communication node todetermine that the buffer storing the X1 bit(s) can be flushed whenchannel decoding fails.

In one embodiment, the first radio signal is used for transmitting thefirst code block.

In one embodiment, the first radio signal carries the first code block.

In one embodiment, the first radio signal carries the first code blockonly.

In one embodiment, the first radio signal carries a Code Block (CB)other than the first code block.

In one embodiment, the first radio signal is transmitted through aDownlink Shared Channel (DL-SCH).

In one embodiment, the first radio signal is transmitted through aPhysical Downlink Shared Channel (PDSCH).

In one embodiment, the X1 bit(s) is(are) processed sequentially throughrate matching, concatenation, scrambling, modulation mapper, layermapper, precoding, resource element mapper and OFDM baseband signalgeneration to obtain the first radio signal.

In one embodiment, the X1 bit(s) is(are) processed sequentially throughrate matching and concatenation with other bits to obtain a first bitblock, and the first bit block is processed sequentially throughscrambling, modulation mapper, layer mapper, precoding, resource elementmapper and OFDM baseband signal generation to obtain the first radiosignal.

In one embodiment, a bit other than the X1 bit(s) is also used forgenerating the first radio signal.

In one embodiment, the first radio signal is generated by the X1 bit(s)only.

In one embodiment, the first radio signal is generated by the X1 bit(s)and a bit other than the X1 bit(s).

In one embodiment, the first radio signal is an initial transmission ofa Transport Block (TB) in one HARQ process.

In one embodiment, the first radio signal is a retransmission of aTransport Block (TB) in one HARQ process.

In one embodiment, the first radio signal is an initial transmission ofa CB in one HARQ process.

In one embodiment, the first radio signal is a retransmission of a CB inone HARQ process.

In one embodiment, the first radio signal is a retransmission of one ormore Code Block Groups(CBGs) in one HARQ process.

In one embodiment, the X1 is less than a number of bits in the first bitblock.

In one embodiment, the X1 is equal to a number of bits in the first bitblock.

In one embodiment, the X1 bit(s) include(s) all bits in the first bitblock.

In one embodiment, the X1 bit(s) include(s) partial bits in the firstbit block only.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X1 bit(s)is(are) X1 consecutive bit(s) in the first bit block.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X1 bit(s)is(are) X1 discrete bit(s) in the first bit block.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X1 bit(s)is(are) X1 consecutive bit(s) starting from the initial bit of the firstbit block in the first bit block.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X1 bit(s)is(are) X1 consecutive bit(s) starting from the non-initial bit of thefirst bit block in the first bit block.

In one embodiment, the first code block is one CB.

In one embodiment, the first code block is one of CBs obtained after oneTB is processed sequentially through Cyclic Redundancy Check (CRC)addition, code block segmentation or CB CRC addition.

In one embodiment, the first code block is obtained after one TB isprocessed through CRC addition.

In one embodiment, the processing of soft buffer or soft combining forthe first code block transmitted in the first radio signal is differentfrom the processing for another CB transmitted in one radio signal otherthan the first radio signal.

In one embodiment, a code block in one radio signal other than the firstradio signal is different from the first code block in processing ofsoft buffer or soft combining.

In one embodiment, the channel coding is Low Density Parity Check Code(LDPC) coding.

In one embodiment, the channel coding is Turbo coding.

In one embodiment, the channel coding is Polar coding.

In one embodiment, the channel coding is convolutional coding.

In one embodiment, the channel coding is LDPC coding in Section 5.3.2 in3GPP TS38.212 (v2.0.0).

In one embodiment, the channel coding is polar coding in Section 5.3.1in 3GPP TS38.212 (v2.0.0).

In one embodiment, the channel coding is turbo coding in Section 5.1.3.2in 3GPP TS36.212.

In one embodiment, the channel coding is convolutional coding in Section5.1.3.1 in 3GPP TS36.212.

In one embodiment, the phrase that the channel coding fails refers thata CRC check does not pass when performing channel decoding of the firstradio signal.

In one embodiment, the phrase that the channel coding fails refers thatthe first radio signal is not received.

In one embodiment, the X2 is not greater than the X1.

In one embodiment, the X2 is not greater than the X1, and each of the X2bit(s) belongs to the X1 bit(s).

In one embodiment, the X2 is not greater than the X1, and one of the X2bit(s) does not belong to the X1 bit(s).

In one embodiment, the X2 is greater than the X1.

In one embodiment, the X2 is greater than the X1, and each of the X1bit(s) belongs to the X2 bit(s).

In one embodiment, the X2 is greater than the X1, and one of the X1bit(s) does not belong to the X2 bit(s).

In one embodiment, the X2 is not greater than a number of bits includedin the first bit block.

In one embodiment, the X2 bit(s) include(s) all bits in the first bitblock.

In one embodiment, the X2 bit(s) include(s) partial bits in the firstbit block only.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X2 bit(s)is(are) X2 consecutive bit(s) in the first bit block.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X2 bit(s)is(are) X2 discrete bit(s) in the first bit block.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X2 bit(s)is(are) X2 consecutive bit(s) starting from the initial bit of the firstbit block in the first bit block.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X2 bit(s)is(are) X2 consecutive bit(s) starting from the non-initial bit of thefirst bit block in the first bit block.

In one embodiment, the first bit block is the bits in a circular bufferafter the first code block experiences LDPC coding.

In one embodiment, the combining coding is channel coding based on softcombining.

In one embodiment, the combining coding is channel coding based on chasecombining.

In one embodiment, the combining coding is channel coding based onIncremental Redundancy (IR).

In one embodiment, the combining coding is channel coding based on IRand chase combining.

In one embodiment, the air interface is wireless.

In one embodiment, the air interface includes a wireless channel.

In one embodiment, the air interface is an interface between thesecond-type communication node and the first-type communication node.

In one embodiment, the air interface is a Uu interface.

In one embodiment, the method further includes:

transmitting a third information.

Herein, the third information is used for indicating a buffer capabilityof soft bits of a transmitter of the third information.

Embodiment 2

Embodiment 2 illustrates a diagram for a network architecture, as shownin FIG. 2. FIG. 2 is a diagram illustrating a network architecture 200of NR 5G, Long-Term Evolution (LTE) and Long-Term Evolution Advanced(LTE-A) systems. The NR 5G or LTE network architecture 200 may be calledan Evolved Packet System (EPS) 200. The EPS 200 may include one or moreUEs 201, a Next Generation-Radio Access Network (NG-RAN) 202, an EvolvedPacket Core/5G-Core Network (EPC/5G-CN) 210, a Home Subscriber Server(HSS) 220 and an Internet service 230. The EPS may be interconnectedwith other access networks. For simple description, theentities/interfaces are not shown. As shown in FIG. 2, the EPS providespacket switching services. Those skilled in the art are easy tounderstand that various concepts presented throughout the disclosure canbe extended to networks providing circuit switching services or othercellular networks. The NG-RAN includes a NR node (gNB) 203 and othergNBs 204. The gNB 203 provides UE 201 oriented user plane and controlplane protocol terminations. The gNB 203 may be connected to other gNBs204 via an Xn interface (for example, backhaul). The gNB 203 may becalled a base station, a base transceiver station, a radio base station,a radio transceiver, a transceiver function, a Basic Service Set (BSS),an Extended Service Set (ESS), a TRP or some other appropriate terms. InNTN networks, the gNB 203 may be a satellite, an aircraft or a groundbase station relayed via a satellite. The gNB 203 provides an accesspoint of the EPC/5G-CN 210 for the UE 201. Examples of UE 201 includecellular phones, smart phones, Session Initiation Protocol (SIP) phones,laptop computers, Personal Digital Assistants (PDAs), satellite radios,non-territorial network base station communications, satellite mobilecommunications, Global Positioning Systems (GPSs), multimedia devices,video devices, digital audio player (for example, MP3 players), cameras,games consoles, unmanned aerial vehicles, air vehicles, narrow-bandphysical network equipment, machine-type communication equipment, landvehicles, automobiles, wearable equipment, or any other devices havingsimilar functions. Those skilled in the art may also call the UE 201 amobile station, a subscriber station, a mobile unit, a subscriber unit,a wireless unit, a remote unit, a mobile device, a wireless device, aradio communication device, a remote device, a mobile subscriberstation, an access terminal, a mobile terminal, a wireless terminal, aremote terminal, a handset, a user proxy, a mobile client, a client, orsome other appropriate terms. The gNB 203 is connected to the EPC/5G-CN210 via an S1/NG interface. The EPC/5G-CN 210 includes a MobilityManagement Entity/Authentication Management Field/User Plane Function(MME/AMF/UPF) 211, other MMEs/AMFs/UPFs 214, a Service Gateway (S-GW)212 and a Packet Data Network Gateway (P-GW) 213. The MME/AMF/UPF 211 isa control node for processing a signaling between the UE 201 and theEPC/5G-CN 210. Generally, the MME/AMF/UPF 211 provides bearer andconnection management. All user Internet Protocol (IP) packets aretransmitted through the S-GW 212. The S-GW 212 is connected to the P-GW213. The P-GW 213 provides UE IP address allocation and other functions.The P-GW 213 is connected to the Internet service 230. The Internetservice 230 includes IP services corresponding to operators,specifically including internet, intranet, IP Multimedia Subsystems (IPIMSs) and PS Streaming Services (PSSs).

In one embodiment, the UE 201 corresponds to the first-typecommunication node in the disclosure.

In one embodiment, the UE 201 supports NTN transmission.

In one embodiment, the gNB 203 corresponds to the second-typecommunication node in the disclosure.

In one embodiment, the gNB 203 supports NTN transmission.

Embodiment 3

Embodiment 3 illustrates a diagram of an embodiment of a radio protocolarchitecture of a user plane and a control plane according to thedisclosure, as shown in FIG. 3. FIG. 3 is a diagram illustrating anembodiment of a radio protocol architecture of a user plane and acontrol plane. In FIG. 3, the radio protocol architecture of afirst-type communication node (UE) and a second-type communication node(gNB or eNB or satellite or aircraft in NTN) is illustrated by threelayers, which are a Layer 1, a Layer 2 and a Layer 3 respectively. TheLayer 1 (L1 layer) 301 is the lowest layer and implements various PHY(physical layer) signal processing functions. The L1 layer will bereferred to herein as the PHY 301. The Layer 2 (L2 layer) 305 is abovethe PHY 301, and is responsible for the link between the first-typecommunication node and the second-type communication node over the PHY301. In the user plane, the L2 layer 305 includes a Medium AccessControl (MAC) sublayer 302, a Radio Link Control (RLC) sublayer 303, anda Packet Data Convergence Protocol (PDCP) sublayer 304, which areterminated at the second-type communication node on the network side.Although not shown in FIG. 3, the first-type communication node mayinclude several higher layers above the L2 layer 305, including anetwork layer (i.e. IP layer) terminated at the P-GW on the network sideand an application layer terminated at the other end (i.e. a peer UE, aserver, etc.) of the connection. The PDCP sublayer 304 providesmultiplexing between different radio bearers and logical channels. ThePDCP sublayer 304 also provides header compression for higher-layerpackets so as to reduce radio transmission overheads. The PDCP sublayer304 provides security by encrypting packets and provides support forfirst-type communication node handover between second-type communicationnodes. The RLC sublayer 303 provides segmentation and reassembling ofhigher-layer packets, retransmission of lost packets, and reordering oflost packets to as to compensate for out-of-order reception due to HARQ.The MAC sublayer 302 provides multiplexing between logical channels andtransport channels. The MAC sublayer 302 is also responsible forallocating various radio resources (i.e., resource blocks) in one cellamong UEs. The MAC sublayer 302 is also in charge of HARQ operations. Inthe control plane, the radio protocol architecture of the first-typecommunication node and the second-type communication node is almost thesame as the radio protocol architecture in the user plane on the PHY 301and the L2 layer 305, with the exception that there is no headercompression function for the control plane. The control plane alsoincludes a Radio Resource Control (RRC) sublayer 306 in the layer 3(L3). The RRC sublayer 306 is responsible for acquiring radio resources(i.e. radio bearers) and configuring lower layers using an RRC signalingbetween the gNB and the UE.

In one embodiment, the radio protocol architecture shown in FIG. 3 isapplicable to the first-type communication node in the disclosure.

In one embodiment, the radio protocol architecture shown in FIG. 3 isapplicable to the second-type communication node in the disclosure.

In one embodiment, the first information in the disclosure is generatedon the RRC 306.

In one embodiment, the first information in the disclosure is generatedon the MAC 302.

In one embodiment, the first information in the disclosure is generatedon the PHY 301.

In one embodiment, the first signaling in the disclosure is generated onthe RRC 306.

In one embodiment, the first signaling in the disclosure is generated onthe PHY 301.

In one embodiment, the first radio signal in the disclosure is generatedon the RRC 306.

In one embodiment, the first radio signal in the disclosure is generatedon the MAC 302.

In one embodiment, the first radio signal in the disclosure is generatedon the PHY 301.

In one embodiment, the second radio signal in the disclosure isgenerated on the RRC 306.

In one embodiment, the second radio signal in the disclosure isgenerated on the MAC 302.

In one embodiment, the second radio signal in the disclosure isgenerated on the PHY 301.

In one embodiment, the second information in the disclosure is generatedon the RRC 306.

In one embodiment, the second information in the disclosure is generatedon the MAC 302.

In one embodiment, the second information in the disclosure is generatedon the PHY 301.

In one embodiment, the second signaling in the disclosure is generatedon the RRC 306.

In one embodiment, the second signaling in the disclosure is generatedon the PHY 301.

Embodiment 4

Embodiment 4 illustrates a diagram of a base station and a given UEaccording to the disclosure, as shown in FIG. 4. FIG. 4 is a blockdiagram of a gNB/eNB 410 in communication with a UE 450 in an accessnetwork.

The UE 450 includes a controller/processor 490, a memory 480, areceiving processor 452, a transmitter/receiver 456, a transmittingprocessor 455 and a data source 467, the transmitter/receiver 456including an antenna 460. The data source 467 provides a higher-layerpacket to the controller/processor 490. The controller/processor 490provides header compression/decompression, encryption/deencryption,packet segmentation and reordering, multiplexing and de-multiplexingbetween a logical channel and a transport channel, to implement L2protocols between the user plane and the control plane. The higher-layerpacket may include data or control information, for example, DL-SCH orUL-SCH. The transmitting processor 455 performs various signaltransmitting processing functions used for L1 layer (that is, PHY),including encoding, interleaving, scrambling, modulation, powercontrol/allocation, precoding, and generation of physical layer controlsignalings. The receiving processor 452 performs various signalreceiving processing functions used for L1 layer (that is, PHY),including decoding, de-interleaving, descrambling, demodulation,de-precoding, and extraction of physical layer control signalings, etc.The transmitter 456 is configured to convert the baseband signalprovided by the transmitting processor 455 into a radio-frequency signaland transmit the radio-frequency signal via the antenna 460. Thereceiver 456 converts a radio-frequency signal received via thecorresponding antenna 460 into a baseband signal and provides thebaseband signal to the receiving processor 452.

The base station 410 includes a controller/processor 440, a memory 430,a receiving processor 412, transmitter/receiver 416 and a transmittingprocessor 415, the transmitter/receiver 416 including an antenna 420. Ahigher-layer packet is provided to the controller/processor 440. Thecontroller/processor 440 provides header compression/decompression,encryption/deencryption, packet segmentation and reordering,multiplexing and de-multiplexing between a logical channel and atransport channel, to implement L2 protocols between the user plane andthe control plane. The higher-layer packet may include data or controlinformation, for example, DL-SCH or UL-SCH. The transmitting processor415 performs various signal transmitting processing functions used forL1 layer (that is, PHY), including encoding, interleaving, scrambling,modulation, power control/allocation, precoding, and generation ofphysical layer control signalings. The receiving processor 412 performsvarious signal receiving processing functions used for L1 layer (thatis, PHY), including decoding, de-interleaving, descrambling,demodulation, de-precoding, and extraction of physical layer controlsignalings, etc. The transmitter 416 is configured to convert thebaseband signal provided by the transmitting processor 415 into aradio-frequency signal and transmit the radio-frequency signal via theantenna 420. The receiver 416 converts a radio-frequency signal receivedvia the corresponding antenna 420 into a baseband signal and providesthe baseband signal to the receiving processor 412.

In Downlink (DL) transmission, a higher-layer packet (for example, ahigher-layer packet carried by the first radio signal and the secondradio signal in the disclosure) is provided to the controller/processor440. The controller/processor 440 provides a function of L2 layer. In DLtransmission, the controller/processor 440 provides header compression,encryption, packet segmentation and reordering, multiplexing between alogical channel and a transport channel, and a radio resource allocationfor the UE 450 based on various priorities. The controller/processor 440is also in charge of HARQ operation, retransmission of a lost packet,and a signaling to the UE 450, for example, the first information, thefirst signaling and the second signaling in the disclosure are allgenerated in the controller/processor 440. The transmitting processor415 performs various signal processing functions used for L1 layer (thatis, physical layer). The signal processing functions include encodingand interleaving so as to ensure FEC (Forward Error Correction) at theUE 450 side and modulation of baseband signals corresponding todifferent modulation schemes (i.e., BPSK, QPSK). The modulated signalsare divided into parallel streams. Each of the parallel streams ismapped into corresponding multi-carrier subcarriers and/or multi-carriersymbols and then is mapped to an antenna 420 by the transmittingprocessor 415 via the transmitter 416 to transmit in form of RadioFrequency (RF) signal. Corresponding channels of the first signaling,the second signaling and the first information in the disclosure in PHYare mapped to a target air interface resource via transmitting processor415 and then mapped to the antenna 420 via the transmitter 416 totransmit in form of RF signal. At the receiving side, every receiver 456receives an RF signal via the corresponding antenna 460. Every receiver456 recovers baseband information modulated to the RF carrier andprovides the baseband information to the receiving processor 452. Thereceiving processor 452 performs signal receiving processing functionsof L1 layer. The signal receiving processing functions includereceptions of physical signals of the first signaling, the secondsignaling and the first information in the disclosure, multicarriersymbols in the multicarrier symbol streams are demodulated correspondingto different modulation schemes (for example, BPSK and QPSK), and thenare decoded and deinterleaved to recover the data or control signals ona physical channel transmitted by the gNB 410, then the data and controlsignals are provided to the controller/processor 490. Thecontroller/processor 490 implements functions of L2 layer, and thecontroller/processor 490 interprets the first information, the firstradio signal and the second radio signal in the disclosure. Thecontroller/processor may be connected to the memory 480 that storesprogram codes and data. The memory 480 may be a computer readablemedium.

In Uplink (UL) transmission, the data source 467 provides relevantconfiguration data of signals to the controller/processor 490. The datasource 467 illustrates all protocol layers above the L2 layer. Thecontroller/processor 490 provides header compression, encryption, packetsegmentation and reordering, and multiplexing between a logical channeland a transport channel based on configurations of the gNB 410 so as toprovide the functions of L2 layer used for the control plane and userplane. The controller/processor 490 is also in charge of HARQ operation,retransmission of lost packets, and signalings to the gNB 410 (includingthe second information in the disclosure). The transmitting processor455 performs various signal transmitting processing functions used forL1 layer (that is, PHY). The signal transmitting processing functionsinclude encoding, modulating, etc.; the modulated symbols are split intoparallel streams and each stream is mapped to corresponding multicarriersubcarriers and/or multicarrier symbols, and then the transmittingprocessor 455 maps it to the antenna 460 via the transmitter 456 totransmit out in form of RF signal. Physical layer signals (including thephysical layer signal corresponding to the second information in thedisclosure) are generated at the processor 455. The receiver 416receives an RF signal via the corresponding antenna 420; each receiver416 recovers the baseband information modulated onto the RF carrier andprovides the baseband information to the receiving processor 412. Thereceiving processor 412 performs various signal receiving processingfunctions used for L1 layer, including receiving physical layer signalsof the second information in the disclosure; the signal receivingprocessing functions include acquiring multicarrier symbol streams, andthen demodulating the multicarrier symbols in the multicarrier symbolstreams corresponding to different modulation schemes (for example, BPSKand QPSK), and then decoding to recover the data or control signals on aphysical channel transmitted by the UE 450, then the data and controlsignals are provided to the controller/processor 440. Thecontroller/processor 440 implements functions of L2 layer. Thecontroller/processor may be connected to the buffer 430 that storesprogram codes and data. The buffer 430 may be a computer readablemedium.

In one embodiment, the UE 450 corresponds to the first-typecommunication node in the disclosure.

In one embodiment, the gNB 410 corresponds to the second-typecommunication node in the disclosure.

In one embodiment, the UE 450 includes at least one processor and atleast one memory. The at least one memory includes computer programcodes. The at least one memory and the computer program codes areconfigured to be used in collaboration with the at least one processor.The UE 400 at least receives first information and receives a firstradio signal; only X1 bit(s) in a first bit block is(are) used forgenerating the first radio signal, the first bit block is obtained as anoutput of channel coding of a first code block, the first code blockincludes a positive integer number of bit(s), and the first bit blockincludes a positive integer number of bit(s); when channel decodingfails, at least X2 bit(s) in the first bit block can be used fordecoding of the first code block with combining, the first informationis used for determining the X2 bit(s), and the X2 is a positive integer;or, the first information is used for determining that the X1 bit(s)cannot be used for decoding of the first code block with combining whenchannel decoding fails; the first information and the first radio signalare both transmitted through an air interface.

In one embodiment, the UE 450 includes a memory that stores a computerreadable instruction program. The computer readable instruction programgenerates an action when executed by at least one processor. The actionincludes: receiving first information and receiving a first radiosignal; only X1 bit(s) in a first bit block is(are) used for generatingthe first radio signal, the first bit block is obtained as an output ofchannel coding of a first code block, the first code block includes apositive integer number of bit(s), and the first bit block includes apositive integer number of bit(s); when channel decoding fails, at leastX2 bit(s) in the first bit block can be used for decoding of the firstcode block with combining, the first information is used for determiningthe X2 bit(s), and the X2 is a positive integer; or, the firstinformation is used for determining that the X1 bit(s) cannot be usedfor decoding of the first code block with combining when channeldecoding fails; the first information and the first radio signal areboth transmitted through an air interface.

In one embodiment, the base station 400 includes at least one processorand at least one memory. The at least one memory includes computerprogram codes. The at least one memory and the computer program codesare configured to be used in collaboration with the at least oneprocessor. The base station 400 at least transmits first information andtransmits a first radio signal; only X1 bit(s) in a first bit blockis(are) used for generating the first radio signal, the first bit blockis obtained as an output of channel coding of a first code block, thefirst code block includes a positive integer number of bit(s), and thefirst bit block includes a positive integer number of bit(s); whenchannel decoding fails, at least X2 bit(s) in the first bit block can beused for decoding of the first code block with combining, the firstinformation is used for determining the X2 bit(s), and the X2 is apositive integer; or, the first information is used for determining thatthe X1 bit(s) cannot be used for decoding of the first code block withcombining when channel decoding fails; the first information and thefirst radio signal are both transmitted through an air interface.

In one embodiment, the base station 400 includes a memory that stores acomputer readable instruction program. The computer readable instructionprogram generates an action when executed by at least one processor. Theaction includes: transmitting first information and transmitting a firstradio signal; only X1 bit(s) in a first bit block is(are) used forgenerating the first radio signal, the first bit block is obtained as anoutput of channel coding of a first code block, the first code blockincludes a positive integer number of bit(s), and the first bit blockincludes a positive integer number of bit(s); when channel decodingfails, at least X2 bit(s) in the first bit block can be used fordecoding of the first code block with combining, the first informationis used for determining the X2 bit(s), and the X2 is a positive integer;or, the first information is used for determining that the X1 bit(s)cannot be used for decoding of the first code block with combining whenchannel decoding fails; the first information and the first radio signalare both transmitted through an air interface.

In one embodiment, the receiver 456 (including antenna 460), thereceiving processor 452 and the controller/processor 490 are used forreceiving the first information in the disclosure.

In one embodiment, the receiver 456 (including antenna 460), thereceiving processor 452 and the controller/processor 490 are used forreceiving the first radio signal in the disclosure.

In one embodiment, the receiver 456 (including antenna 460), thereceiving processor 452 and the controller/processor 490 are used forreceiving the first signaling in the disclosure.

In one embodiment, the receiver 456 (including antenna 460), thereceiving processor 452 and the controller/processor 490 are used forreceiving the second signaling in the disclosure.

In one embodiment, the receiver 456 (including antenna 460), thereceiving processor 452 and the controller/processor 490 are used forreceiving the second radio signal in the disclosure.

In one embodiment, the transmitter 456 (including antenna 460), thetransmitting processor 455 and the controller/processor 490 are used fortransmitting the second information in the disclosure.

In one embodiment, the transmitter 416 (including antenna 420), thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the first information in the disclosure.

In one embodiment, the transmitter 416 (including antenna 420), thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the first radio signal in the disclosure.

In one embodiment, the transmitter 416 (including antenna 420), thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the first signaling in the disclosure.

In one embodiment, the transmitter 416 (including antenna 420), thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the second signaling in the disclosure.

In one embodiment, the transmitter 416 (including antenna 420), thetransmitting processor 415 and the controller/processor 440 are used fortransmitting the second radio signal in the disclosure.

In one embodiment, the receiver 416 (including antenna 420), thereceiving processor 412 and the controller/processor 440 are used forreceiving the second information in the disclosure.

Embodiment 5

Embodiment 5 illustrates a flowchart of transmission of a radio signalaccording to one embodiment of the disclosure, as shown in FIG. 5. InFIG. 5, a second-type communication node N1 is a maintenance basestation for a serving cell of a first-type communication node U2, andsteps in a dash-line box are optional.

The second-type communication node N1 receives second information inS11, transmits first information in S12, transmits a first signaling inS13, transmits a first radio signal in S14, transmits a second signalingin S15 and transmits a second radio signal in S16.

The first-type communication node U2 transmits second information inS21, receives first information in S22, receives a first signaling inS23, receives a first radio signal in S24, receives a second signalingin S25 and receives a second radio signal in S26.

In Embodiment 5, only X1 bit(s) in a first bit block is(are) used forgenerating the first radio signal, the first bit block is obtained as anoutput of channel coding of a first code block, the first code blockincludes a positive integer number of bit(s), and the first bit blockincludes a positive integer number of bit(s); when channel decodingfails, at least X2 bit(s) in the first bit block can be used fordecoding of the first code block with combining, the first informationis used for determining the X2 bit(s), and the X2 is a positive integer;or, the first information is used for determining that the X1 bit(s)cannot be used for decoding of the first code block with combining whenchannel decoding fails; the first information and the first radio signalare both transmitted through an air interface; the first signaling isused for indicating time-frequency resources occupied by the first radiosignal, a number of resource elements included in the time-frequencyresources occupied by the first radio signal is used for determining anumber of bits included in the first code block, and the first signalingis transmitted through the air interface; the second signaling is usedfor determining X3 bit(s) in the first bit block, and the X3 bit(s)is(are) used for generating the second radio signal; the X2 bit(s)include(s) the X3 bit(s), or a redundancy version corresponding to theX3 bit(s) is equal to 0; the second signaling and the second radiosignal are transmitted through the air interface; the first informationis used for determining a first threshold, a probability that atransport block carried by the first radio signal is erroneously decodeddoes not exceed the first threshold, the first threshold is a positivereal number, the second information is used for indicating a channelquality measured based on the first threshold, and the secondinformation is transmitted through the air interface.

In one embodiment, the first radio signal belongs to a first HARQprocess, and the first information is used for determining a number ofbits in the first HARQ process that can be used for decoding withcombining.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, the X2 bit(s) is(are)X2 consecutive bits in the first bit block, and a start position of theX2 bit(s) in the first bit block is predefined.

In one embodiment, the first information is used for determining atarget MCS set from P MCS sets, an MCS employed by the first radiosignal is one MCS in the target MCS set, each of the P MCS sets includesa positive integer number of MCSs, any two of the P MCS sets aredifferent, and the P is a positive integer greater than 1.

In one embodiment, the first signaling is further used for indicating anMCS employed by the first radio signal, and the MCS employed by thefirst radio signal is also used for determining a number of bitsincluded in the first code block.

In one embodiment, the first signaling is further used for indicatingspatial resources occupied by the first radio signal, and the spatialresources occupied by the first radio signal are also used fordetermining a number of bits included in the first code block.

In one embodiment, the first signaling is transmitted through a PDCCH.

In one embodiment, the first signaling is all or partial fields in oneDIC signaling.

In one embodiment, the first signaling is one physical layer signaling.

In one embodiment, the first signaling is one higher layer signaling.

In one embodiment, the first signaling is all or partial InformationElements (IE2) in one RRC signaling.

In one embodiment, the first signaling is one signaling indicatingtime-frequency resources that cannot be occupied by the first radiosignal.

In one embodiment, the first signaling indicates directly time-frequencyresources occupied by the first radio signal.

In one embodiment, the first signaling indicates indirectlytime-frequency resources occupied by the first radio signal.

In one embodiment, the first signaling indicates explicitlytime-frequency resources occupied by the first radio signal.

In one embodiment, the first signaling indicates implicitlytime-frequency resources occupied by the first radio signal.

In one embodiment, the first information is one part of the firstsignaling.

In one embodiment, the first signaling carries the first information.

In one embodiment, the first information is one field in the firstsignaling.

In one embodiment, the first information is carried by one signalingother than the first signaling.

In one embodiment, a transmission start of the second signaling is laterthan a transmission start of the first radio signal.

In one embodiment, a transmission start of the second signaling is laterthan a transmission end of the first radio signal.

In one embodiment, the second signaling is transmitted through a PDCCH.

In one embodiment, the second signaling is all or partial fields in oneDCI signaling.

In one embodiment, the second signaling is one physical layer signaling.

In one embodiment, the second signaling is one higher layer signaling.

In one embodiment, the second signaling is all or partial IEs in one RRCsignaling.

In one embodiment, the second signaling is one signaling indicatingtime-frequency resources that cannot be occupied by the first radiosignal.

In one embodiment, the second signaling is used by the first-typecommunication node to determine the X3 bit(s) in the first bit block.

In one embodiment, the second signaling is used by the first-typecommunication node to indirectly determine the X3 bit(s) in the firstbit block.

In one embodiment, the second signaling is used by the first-typecommunication node to directly determine the X3 bit(s) in the first bitblock.

In one embodiment, the second signaling indicates explicitly the X3bit(s) in the first bit block.

In one embodiment, the second signaling indicates implicitly the X3bit(s) in the first bit block.

In one embodiment, the first information is used by the first-typecommunication node to directly determine the first threshold.

In one embodiment, the first information is used by the first-typecommunication node to indirectly determine the first threshold.

In one embodiment, the first information indicates explicitly the firstthreshold.

In one embodiment, the first information indicates implicitly the firstthreshold.

In one embodiment, the second information is used by the first-typecommunication node to indicate a channel quality measured based on thefirst threshold.

In one embodiment, the second information indicates directly a channelquality measured based on the first threshold.

In one embodiment, the second information indicates indirectly a channelquality measured based on the first threshold.

In one embodiment, the second information indicates explicitly a channelquality measured based on the first threshold.

In one embodiment, the second information indicates implicitly a channelquality measured based on the first threshold.

In one embodiment, the second information includes a Channel QualityIndicator (CQI).

In one embodiment, the second information is partial or an entirety ofone Uplink Control Information (UCI) signaling.

In one embodiment, the second information is transmitted through aPhysical Uplink Shared Channel (PUSCH).

In one embodiment, the second information is transmitted through anUplink Shared Channel (UL-SCH).

In one embodiment, the second information is transmitted through aPhysical Uplink Control Channel (PUCCH).

In one embodiment, the second information is transmitted through onephysical layer signaling.

In one embodiment, the second information is transmitted through onehigher layer signaling.

In one embodiment, the phrase that the second information is used toindicate a channel quality measured based on the first threshold refersthat: the first-type communication node assumes that one downlinktransport block, employing an MCS and TBS (Transport Block Size)indicated by the second information, can be received at a block rateerror not exceeding the first threshold.

Embodiment 6

Embodiment 6 illustrates a diagram of a relationship among a first bitblock, X1 bits and X2 bits according to one embodiment of thedisclosure, as shown in FIG. 6. In FIG. 6, a circular area filled withslashes represents a first bit block, an area indicted by a solid arrowin the circular area represents X1 bits, and an area indicated by adashed arrow in the circular area represents X2 bits.

In Embodiment 6, only X1 bits in a first bit block are used forgenerating the first radio signal in the disclosure, the first bit blockis obtained as an output of channel coding of a first code block, thefirst code block includes a positive integer number of bits, and thefirst bit block includes a positive integer number of bits; when channeldecoding fails, at least X2 bits in the first bit block can be used fordecoding of the first code block with combining, the first informationin the disclosure is used for determining the X2 bits, and the X2 is apositive integer; or, the first information is used for determining thatthe X1 bits cannot be used for decoding of the first code block withcombining when channel decoding fails; the X2 bits are X2 consecutivebits in the first bit block, and a start position of the X2 bits in thefirst bit block is predefined.

In one embodiment, the phrase that a start position of the X2 bits inthe first bit block is predefined refers that: a start position of theX2 bits in the first bit block is a start position determined by a givenRV in the first bit block.

In one embodiment, the phrase that a start position of the X2 bits inthe first bit block is predefined refers that: a start position of theX2 bits in the first bit block is a start position determined by a givenRV that is equal to 0 in the first bit block.

In one embodiment, the phrase that a start position of the X2 bits inthe first bit block is predefined refers that: a start position of theX2 bits in the first bit block is a position of an initial bitdetermined by a given RV in the first bit block according to thecomputation in Section 5.4.2 in 3GPP TS38.212 (v2.0.0).

In one embodiment, the phrase that a start position of the X2 bits inthe first bit block is predefined refers that: a start position of theX2 bits in the first bit block is a position of an initial bitdetermined by a given RV that is equal to 0 in the first bit blockaccording to the computation in Section 5.4.2 in 3GPP TS38.212 (v2.0.0).

Embodiment 7

Embodiment 7 illustrates a diagram of a relationship betweentime-frequency resources occupied by a first radio signal and a numberof bits included in a first code block according to one embodiment ofthe disclosure, as shown in FIG. 7. In FIG. 7, N′_(RE) in the firstcolumn represents a number of resource elements that each PRB (PhysicalResource Block) in time-frequency resources occupied by the first radiosignal includes in one slot, the N′_(RE) in the second column representsa quantified number of resource elements for the N′_(RE), the n_(PRB) inthe third column represents a number of PRBs in frequency domain intime-frequency resources occupied by the first radio signal, the fourthcolumn represents a modulation order employed by the first radio signal,and the fifth column represents a number of bits included in the firstcode block. In Embodiment 7, a number of resource elements included inthe time-frequency resources occupied by the first radio signal is usedfor determining a number of bits included in the first code block in thedisclosure.

In one embodiment, time-frequency resources occupied by the first radiosignal include a positive integer number of Resource Elements (REs).

In one embodiment, one RE occupies one Orthogonal Frequency DivisionMultiplexing (OFDM) subcarrier in frequency domain and occupies one OFDMmulticarrier symbol in time domain, wherein one multicarrier symbolincludes a Cyclic Prefix (CP).

In one embodiment, a number of REs included in the time-frequencyresources occupied by the first radio signal is used by the first-typecommunication node to determine a number of bits included in the firstcode block.

In one embodiment, a number of REs included in the time-frequencyresources occupied by the first radio signal is used by the first-typecommunication node to determine a number of bits included in the firstcode block based on a specific mapping relationship.

In one embodiment, a number of REs included in the time-frequencyresources occupied by the first radio signal is used by the first-typecommunication node to determine a number of bits included in the firstcode block based on a specific computing rule.

In one embodiment, a number of REs included in the time-frequencyresources occupied by the first radio signal is used for determining areference number of REs; the reference number of REs, the MCS used bythe first radio signal and the occupied layer number are used fordetermining a total number of bits included in the first transportblock, and the first transport block is processed through transportblock CRC addition, code block segmentation and code block CRC additionto determine a number of bits included in the first code block.

In one embodiment, a number of REs included in the time-frequencyresources occupied by the first radio signal determines a size of afirst transport block according to Section 5.1.3.2 in 3GPP TS38.214(v2.0.0), the first transport block determines a number of bits includedin the first code block according to Section 5.1 and Section 5.2 in 3GPPTS38.212 (v2.0.0), the first code block is obtained after the firsttransport block is processed sequentially through transport CRCaddition, code block segmentation and code block CRC addition.

Embodiment 8

Embodiment 8 illustrates a diagram of a relationship among a first bitblock, X2 bits and X3 bits according to one embodiment of thedisclosure, as shown in FIG. 8. In FIG. 8, a circular area filled withslashes represents a first bit block; in Case A, an area indicted by asolid arrow in the circular area represents X2 bits, and an areaindicated by a dashed arrow in the circular area represents X3 bits; inCase B, an area indicated by a dashed arrow in the circular arearepresents X3 bits.

In Embodiment 8, the second signaling in the disclosure is used fordetermining X3 bits in the first bit block, and the X3 bits are used forgenerating the second radio signal in the disclosure; the X2 bitsinclude the X3 bits (corresponding to Case A), or an RV corresponding tothe X3 bits is equal to 0 (corresponding to Case B).

In one embodiment, a position of the X3 bits in the first bit block isrelated to a position of the X2 bits in the first bit block.

In one embodiment, a transmit start of the second radio signal is laterthan a transmission start of the first radio signal.

In one embodiment, a transmit start of the second radio signal is laterthan a transmission end of the first radio signal.

In one embodiment, the X3 bits are processed sequentially through ratematching, concatenation, scrambling, modulation mapper, layer mapper,precoding, resource element mapper and OFDM baseband signal generationto obtain the second radio signal.

In one embodiment, the X3 bits are processed sequentially through ratematching and concatenation with other bits to obtain a second bit block,and the second bit block is processed sequentially through scrambling,modulation mapper, layer mapper, precoding, resource element mapper andOFDM baseband signal generation to obtain the second radio signal.

In one embodiment, a bit other than the X3 bits is also used forgenerating the second radio signal.

In one embodiment, the second radio signal is generated by the X3 bit(s)only.

In one embodiment, the second radio signal is generated by the X3 bitsand a bit other than the X3 bits.

In one embodiment, the second radio signal is a retransmission of a TBin one HARQ process.

In one embodiment, the first radio signal is a retransmission of one ormore CBGs in one HARQ process.

In one embodiment, the first radio signal is a retransmission of a CB inone HARQ process.

In one embodiment, the X3 is less than a number of bits in the first bitblock.

In one embodiment, the X3 is a positive integer not greater than the X2.

In one embodiment, the X3 is a positive integer greater than the X2.

In one embodiment, the X3 is equal to a number of bits in the first bitblock.

In one embodiment, the X3 bits include all bits in the first bit block.

In one embodiment, the X3 bits include partial bits in the first bitblock only.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X3 bits are X3consecutive bits in the first bit block.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X3 bits are X3discrete bits in the first bit block.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X3 bits are X3consecutive bits starting from the initial bit of the first bit block inthe first bit block.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, and the X3 bits are X3consecutive bits starting from the non-initial bit of the first bitblock in the first bit block.

In one embodiment, any one of the X3 bits belongs to the X2 bits.

In one embodiment, the phrase that an RV corresponding to the X3 bits isequal to 0 refers that: the first bit block is a sequential output ofchannel coding of the first code block, and the X3 bits are X3consecutive bits starting from an initial bit obtained according to anRV equal to 0 in the first bit block.

In one embodiment, the phrase that an RV corresponding to the X3 bits isequal to 0 refers that: the first bit block is a sequential output ofchannel coding of the first code block, and the X3 bits are X3consecutive bits starting from an initial bit determined according to anRV equal to 0 in the first bit block during a rate matching process.

In one embodiment, the phrase that an RV corresponding to the X3 bits isequal to 0 refers that: the first bit block is a sequential output ofchannel coding of the first code block, and the X3 bits are X3consecutive bits starting from an initial bit determined according to anRV equal to 0 in the first bit block, following the computation inSection 5.4.2 in 3GPP TS38.212 (v2.0.0).

Embodiment 9

Embodiment 9 illustrates a diagram of a first HARQ process according toone embodiment of the disclosure, as shown in FIG. 9. In FIG. 9, thehorizontal axis represents time, a rectangle filled with slashesrepresents a first radio signal belonging to a first HARQ process, and arectangle filled with cross lines represents one retransmission of afirst radio signal belonging to a first HARQ process.

In Embodiment 9, the first radio signal in the disclosure belongs to afirst HARQ process, and the first information in the disclosure is usedfor determining a number of bits in the first HARQ process that can beused for decoding with combining.

In one embodiment, the first HARQ process belongs to one of Y HARQprocesses, and the first information is used for determining a number ofbits in each of the Y HARQ processes that can be used for decoding withcombining.

In one embodiment, the phrase that the first radio signal belongs to thefirst HARQ process refers that: a process number assigned to the firstradio signal is equal to a process number of the first HARQ process.

In one embodiment, the phrase that the first information is used fordetermining a number of bits in the first HARQ process that can be usedfor decoding with combining refers that: the first information is usedby the first-type communication node to directly determine a number ofbits in the first HARQ process that can be used for decoding withcombining.

In one embodiment, the phrase that the first information is used fordetermining a number of bits in the first HARQ process that can be usedfor decoding with combining refers that: the first information is usedby the first-type communication node to indirectly determine a number ofbits in the first HARQ process that can be used for decoding withcombining.

In one embodiment, the phrase that the first information is used fordetermining a number of bits in the first HARQ process that can be usedfor decoding with combining refers that: the first information indicatesexplicitly a number of bits in the first HARQ process that can be usedfor decoding with combining.

In one embodiment, the phrase that the first information is used fordetermining a number of bits in the first HARQ process that can be usedfor decoding with combining refers that: the first information indicatesimplicitly a number of bits in the first HARQ process that can be usedfor decoding with combining.

In one embodiment, the phrase that the first information is used fordetermining a number of bits in the first HARQ process that can be usedfor decoding with combining refers that: the first information is usedfor indicating a size of a soft buffer reserved for the first HARQprocess by the first-type communication node, and a number of bits thatcan be buffered in the soft buffer reserved for the first HARQ processis equal to a number of bits in the first HARQ process that can be usedfor decoding with combining.

In one embodiment, the phrase that the first information is used fordetermining a number of bits in the first HARQ process that can be usedfor decoding with combining refers that: the first information is usedfor indicating a size of a soft buffer reserved for the first HARQprocess by the first-type communication node, and the soft bufferreserved for the first HARQ process is used for determining a number ofbits in the first HARQ process that can be used for decoding withcombining.

In one embodiment, the first HARQ process belongs to one of Y HARQprocesses, the first information is used for indicating a size of a softbuffer reserved for each of the Y HARQ processes by the first-typecommunication node, and the soft buffer reserved for each of the Y HARQprocesses is used for determining a number of bits in the HARQ processthat can be used for decoding with combining.

In one embodiment, the first HARQ process belongs to one of Y HARQprocesses, the first information is used for indicating a size of a softbuffer reserved for each of the Y HARQ processes by the first-typecommunication node, and the size of the soft buffer reserved for each ofthe Y HARQ processes is equal to a number of bits in the HARQ processthat can be used for decoding with combining.

In one embodiment, the phrase that the first information is used fordetermining a number of bits in the first HARQ process that can be usedfor decoding with combining refers that: the first information is usedfor indicating whether a number of bits in the first HARQ process thatcan be used for decoding with combining is equal to 0.

In one embodiment, the phrase that the first information is used fordetermining a number of bits in the first HARQ process that can be usedfor decoding with combining refers that: the first information is usedfor indicating whether soft bits in the first HARQ process can beflushed after one time of (successful or failed) reception.

In one embodiment, the first HARQ process belongs to one of Y HARQprocesses, and the first information is used for indicating whether softbits in each of the Y HARQ processes can be flushed after one time of(successful or failed) reception.

Embodiment 10

Embodiment 10 illustrates a diagram of a target MCS set according to oneembodiment of the disclosure, as shown in FIG. 10. In FIG. 10, each rowrepresents one MCS in a target MCS set, the first column represents anindex of an MCS, the second column represents a modulation order, thethird column represents a target code rate, the fourth column representsa spectral efficiency, and the bold-line row represents an MCS employedby the first radio signal.

In Embodiment 10, the first information in the disclosure is used fordetermining a target MCS set from P MCS sets, an MCS employed by thefirst radio signal in the disclosure is one MCS in the target MCS set,each of the P MCS sets includes a positive integer number of MCSs, anytwo of the P MCS sets are different, and the P is a positive integergreater than 1.

In one embodiment, each of the P MCS sets corresponds to one MCS table.

In one embodiment, one MCS includes a combination of one modulationorder, one target code rate and one spectral efficiency.

In one embodiment, the phrase that two MCS sets are different refersthat: one MCS belongs to only one of the two MCS sets.

In one embodiment, respective MCSs included in a Table 5.1.3.1-1 and aTable 5.1.3.1-2 in 3GPP TS38.214 constitute a first MCS set and a secondMCS set respectively, the first MCS set and the second MCS set belong totwo of the P MCS sets, and one of the P MCS set is different from boththe first MCS set and the second MCS set, and the P is greater than 2.

Embodiment 11

Embodiment 11 illustrates a diagram of a channel quality measured basedon a first threshold according to one embodiment of the disclosure, asshown in FIG. 11. In FIG. 11, each row represents one state of ameasured Channel Quality Indicator (CQI), the first column represents anindex of a CQI, the second column represents a modulation scheme, thethird column represents a code rate and the fourth column represents anefficiency.

In Embodiment 11, the first information in the disclosure is used fordetermining a first threshold, a probability that a transport blockcarried by the first radio signal in the disclosure is erroneouslydecoded does not exceed the first threshold, the first threshold is apositive real number, the second information in the disclosure is usedfor indicating a channel quality measured based on the first threshold.

In one embodiment, the first threshold is less than 0.1.

In one embodiment, the first threshold is greater than 0.1.

In one embodiment, the first threshold is equal to 0.1.

In one embodiment, the first threshold is not equal to an existing (3GPPR15) target block error rate.

In one embodiment, the first threshold is not equal to any one value inIE ‘BLER-target’ in existing 3GPP TS 38.331(Release 15).

In one embodiment, the first threshold is equal to one value in IE‘BLER-target’ in existing 3GPP TS 38.331(Release 15).

In one embodiment, the channel quality is indicated through a CQI.

Embodiment 12

Embodiment 12 illustrates a structure block diagram of a processingdevice in a first-type communication node, as shown in FIG. 12. In FIG.12, the processing device 1200 in the first-type communication nodeincludes a first transceiver 1201 and a first receiver 1202. The firsttransceiver 1201 includes the transmitter/receiver 456 (includingantenna 460), the receiving processor 452, the transmitting processor455 and the controller/processor 490 illustrated in FIG. 4 in thedisclosure; the first receiver 1202 includes the transmitter/receiver456 (including antenna 460), the receiving processor 452 and thecontroller/processor 490 illustrated in FIG. 4 in the disclosure.

In Embodiment 12, the first transceiver 1201 receives first information;the first receiver 1202 receives a first radio signal; only X1 bit(s) ina first bit block is(are) used for generating the first radio signal,the first bit block is obtained as an output of channel coding of afirst code block, the first code block includes a positive integernumber of bit(s), and the first bit block includes a positive integernumber of bit(s); when channel decoding fails, at least X2 bit(s) in thefirst bit block can be used for decoding of the first code block withcombining, the first information is used for determining the X2 bit(s),and the X2 is a positive integer; or, the first information is used fordetermining that the X1 bit(s) cannot be used for decoding of the firstcode block with combining when channel decoding fails; the firstinformation and the first radio signal are both transmitted through anair interface.

In one embodiment, the first transceiver 1201 further receives a firstsignaling; the first signaling is used for indicating time-frequencyresources occupied by the first radio signal, a number of resourceelements included in the time-frequency resources occupied by the firstradio signal is used for determining a number of bits included in thefirst code block, and the first signaling is transmitted through the airinterface.

In one embodiment, the first transceiver 1201 further receives a secondsignaling; the first receiver 1202 further receives a second radiosignal; the second signaling is used for determining X3 bit(s) in thefirst bit block, and the X3 bit(s) is(are) used for generating thesecond radio signal; the X2 bit(s) include(s) the X3 bit(s), or aredundancy version corresponding to the X3 bit(s) is equal to 0; thesecond signaling and the second radio signal are transmitted through theair interface.

In one embodiment, the first radio signal belongs to a first HARQprocess, and the first information is used for determining a number ofbits in the first HARQ process that can be used for decoding withcombining.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, the X2 bit(s) is(are)X2 consecutive bits in the first bit block, and a start position of theX2 bit(s) in the first bit block is predefined.

In one embodiment, the first information is used for determining atarget MCS set from P MCS sets, an MCS employed by the first radiosignal is one MCS in the target MCS set, each of the P MCS sets includesa positive integer number of MCSs, any two of the P MCS sets aredifferent, and the P is a positive integer greater than 1.

In one embodiment, the first transceiver 1201 further transmits secondinformation; the first information is used for determining a firstthreshold, a probability that a transport block carried by the firstradio signal is erroneously decoded does not exceed the first threshold,the first threshold is a positive real number, the second information isused for indicating a channel quality measured based on the firstthreshold, and the second information is transmitted through the airinterface.

Embodiment 13

Embodiment 13 illustrates a structure block diagram of a processingdevice in a second-type communication node, as shown in FIG. 13. In FIG.13, the processing device in the second-type communication node includesa second transceiver 1301 and a first transmitter 1302. The secondtransceiver 1301 includes the transmitter/receiver 416 (includingantenna 420), the transmitting processor 415, the receiving processor412 and the controller/processor 440 illustrated in FIG. 4 in thedisclosure; and the first transmitter 1302 includes thetransmitter/receiver 416 (including antenna 420), the transmittingprocessor 415 and the controller/processor 440 illustrated in FIG. 4 inthe disclosure.

In Embodiment 13, the second transceiver 1301 transmits firstinformation; the first transmitter 1302 transmit a first radio signal;herein, only X1 bit(s) in a first bit block is(are) used for generatingthe first radio signal, the first bit block is obtained as an output ofchannel coding of a first code block, the first code block includes apositive integer number of bit(s), and the first bit block includes apositive integer number of bit(s); when channel decoding fails, at leastX2 bit(s) in the first bit block can be used for decoding of the firstcode block with combining, the first information is used for determiningthe X2 bit(s), and the X2 is a positive integer; or, the firstinformation is used for determining that the X1 bit(s) cannot be usedfor decoding of the first code block with combining when channeldecoding fails; the first information and the first radio signal areboth transmitted through an air interface.

In one embodiment, the second transceiver 1301 further transmits a firstsignaling; the first signaling is used for indicating time-frequencyresources occupied by the first radio signal, a number of resourceelements included in the time-frequency resources occupied by the firstradio signal is used for determining a number of bits included in thefirst code block, and the first signaling is transmitted through the airinterface.

In one embodiment, the second transceiver 1301 further transmits asecond signaling; the first transmitter 1302 further transmits a secondradio signal; the second signaling is used for determining X3 bit(s) inthe first bit block, and the X3 bit(s) is(are) used for generating thesecond radio signal; the X2 bit(s) include(s) the X3 bit(s), or aredundancy version corresponding to the X3 bit(s) is equal to 0; thesecond signaling and the second radio signal are transmitted through theair interface.

In one embodiment, the first radio signal belongs to a first HARQprocess, and the first information is used for determining a number ofbits in the first HARQ process that can be used for decoding withcombining.

In one embodiment, the first bit block is obtained as a sequentialoutput of channel coding of the first code block, the X2 bit(s) is(are)X2 consecutive bits in the first bit block, and a start position of theX2 bit(s) in the first bit block is predefined.

In one embodiment, the first information is used for determining atarget MCS set from P MCS sets, an MCS employed by the first radiosignal is one MCS in the target MCS set, each of the P MCS sets includesa positive integer number of MCSs, any two of the P MCS sets aredifferent, and the P is a positive integer greater than 1.

In one embodiment, the second transceiver 1301 further receives secondinformation; the first information is used for determining a firstthreshold, a probability that a transport block carried by the firstradio signal is erroneously decoded does not exceed the first threshold,the first threshold is a positive real number, the second information isused for indicating a channel quality measured based on the firstthreshold, and the second information is transmitted through the airinterface.

The ordinary skill in the art may understand that all or part steps inthe above method may be implemented by instructing related hardwarethrough a program. The program may be stored in a computer readablestorage medium, for example Read-Only Memory (ROM), hard disk or compactdisc, etc. Optionally, all or part steps in the above embodiments alsomay be implemented by one or more integrated circuits. Correspondingly,each module unit in the above embodiment may be realized in the form ofhardware, or in the form of software function modules. The disclosure isnot limited to any combination of hardware and software in specificforms. The first-type communication node or UE or terminal in thedisclosure in the disclosure includes but not limited to mobile phones,tablet computers, notebooks, network cards, low-power equipment,enhanced MTC (eMTC) equipment, NB-IOT equipment, vehicle-mountedcommunication equipment, aircrafts, airplanes, unmanned aerial vehicles,telecontrolled aircrafts, and other radio communication equipment. Thesecond-type communication node or base station or network side equipmentin the disclosure includes but not limited to macro-cellular basestations, micro-cellular base stations, home base stations, relay basestations, eNBs, gNBs, TRPs, relay satellites, satellite base stations,air base stations and other radio communication equipment.

The above are merely the preferred embodiments of the disclosure and arenot intended to limit the scope of protection of the disclosure. Anymodification, equivalent substitute and improvement made within thespirit and principle of the disclosure are intended to be includedwithin the scope of protection of the disclosure.

What is claimed is:
 1. A method in a first-type communication node forwireless communications, comprising: receiving first information; andreceiving a first radio signal; wherein only X1 bit(s) in a first bitblock is(are) used for generating the first radio signal, the first bitblock is obtained as an output of channel coding of a first code block,the first code block comprises a positive integer number of bit(s), andthe first bit block comprises a positive integer number of bit(s); whenchannel decoding fails, at least X2 bit(s) in the first bit block can beused for decoding of the first code block with combining, the firstinformation is used for determining the X2 bit(s), and the X2 is apositive integer; or, the first information is used for determining thatthe X1 bit(s) cannot be used for decoding of the first code block withcombining when channel decoding fails; the first information and thefirst radio signal are both transmitted through an air interface; thefirst radio signal is transmitted through a Physical Downlink SharedChannel (PDSCH), the channel coding is Low Density Parity Check Code(LDPC) coding.
 2. The method according to claim 1, further comprising:receiving a first signaling; wherein the first signaling is used forindicating time-frequency resources occupied by the first radio signal,a number of resource elements included in the time-frequency resourcesoccupied by the first radio signal is used for determining a number ofbits included in the first code block, and the first signaling istransmitted through the air interface; the first radio signal belongs toa first HARQ process, and the first information is used for determininga number of bits in the first HARQ process that can be used for decodingwith combining.
 3. The method according to claim 1, further comprising:receiving a second signaling; and receiving a second radio signal;wherein the second signaling is used for determining X3 bit(s) in thefirst bit block, and the X3 bit(s) is(are) used for generating thesecond radio signal; the X2 bit(s) comprise(s) the X3 bit(s), or aredundancy version corresponding to the X3 bit(s) is equal to 0; thesecond signaling and the second radio signal are transmitted through theair interface.
 4. The method according to claim 1, wherein the firstinformation is used for determining a target Modulation Coding Scheme(MCS) set from P MCS sets, an MCS employed by the first radio signal isone MCS in the target MCS set, each of the P MCS sets comprises apositive integer number of MCSs, any two of the P MCS sets aredifferent, and the P is a positive integer greater than
 1. 5. The methodaccording to claim 1, further comprising: transmitting secondinformation; wherein the first information is used for determining afirst threshold, a probability that a transport block carried by thefirst radio signal is erroneously decoded does not exceed the firstthreshold, the first threshold is a positive real number, the secondinformation is used for indicating a channel quality measured based onthe first threshold, and the second information is transmitted throughthe air interface.
 6. The method according to claim 1, wherein the firstbit block is obtained as a sequential output of channel coding of thefirst code block, the X2 bit(s) is(are) X2 consecutive bits in the firstbit block, and a start position of the X2 bit(s) in the first bit blockis predefined.
 7. The method according to claim 1, wherein the firstinformation is used by the first-type communication node to determinethat the buffer storing the X1 bit(s) can be flushed when channeldecoding fails.
 8. A first-type communication node for wirelesscommunications, comprising: a first transceiver, to receive firstinformation; and a first receiver, to receive a first radio signal;wherein only X1 bit(s) in a first bit block is(are) used for generatingthe first radio signal, the first bit block is obtained as an output ofchannel coding of a first code block, the first code block comprises apositive integer number of bit(s), and the first bit block comprises apositive integer number of bit(s); when channel decoding fails, at leastX2 bit(s) in the first bit block can be used for decoding of the firstcode block with combining, the first information is used for determiningthe X2 bit(s), and the X2 is a positive integer; or, the firstinformation is used for determining that the X1 bit(s) cannot be usedfor decoding of the first code block with combining when channeldecoding fails; the first information and the first radio signal areboth transmitted through an air interface; the first radio signal istransmitted through a Physical Downlink Shared Channel (PDSCH), thechannel coding is Low Density Parity Check Code (LDPC) coding.
 9. Thefirst-type communication node according to claim 8, wherein the firsttransceiver receives a first signaling; the first signaling is used forindicating time-frequency resources occupied by the first radio signal,a number of resource elements included in the time-frequency resourcesoccupied by the first radio signal is used for determining a number ofbits included in the first code block, and the first signaling istransmitted through the air interface; the first radio signal belongs toa first HARQ process, and the first information is used for determininga number of bits in the first HARQ process that can be used for decodingwith combining.
 10. The first-type communication node according to claim8, wherein the first transceiver receives a second signaling; the firstreceiver receives a second radio signal; the second signaling is usedfor determining X3 bit(s) in the first bit block, and the X3 bit(s)is(are) used for generating the second radio signal; the X2 bit(s)comprise(s) the X3 bit(s), or a redundancy version corresponding to theX3 bit(s) is equal to 0; the second signaling and the second radiosignal are transmitted through the air interface.
 11. The first-typecommunication node according to claim 8, wherein the first informationis used for determining a target MCS set from P MCS sets, an MCSemployed by the first radio signal is one MCS in the target MCS set,each of the P MCS sets comprises a positive integer number of MCSs, anytwo of the P MCS sets are different, and the P is a positive integergreater than
 1. 12. The first-type communication node according to claim8, wherein the first transceiver transmits second information; the firstinformation is used for determining a first threshold, a probabilitythat a transport block carried by the first radio signal is erroneouslydecoded does not exceed the first threshold, the first threshold is apositive real number, the second information is used for indicating achannel quality measured based on the first threshold, and the secondinformation is transmitted through the air interface.
 13. The first-typecommunication node according to claim 8, wherein the first bit block isobtained as a sequential output of channel coding of the first codeblock, the X2 bit(s) is(are) X2 consecutive bits in the first bit block,and a start position of the X2 bit(s) in the first bit block ispredefined.
 14. The first-type communication node according to claim 8,wherein the first information is used by the first-type communicationnode to determine that the buffer storing the X1 bit(s) can be flushedwhen channel decoding fails.
 15. A second-type communication node forwireless communications, comprising: a second transceiver, to transmitfirst information; and a first transmitter, to transmit a first radiosignal; wherein only X1 bit(s) in a first bit block is(are) used forgenerating the first radio signal, the first bit block is obtained as anoutput of channel coding of a first code block, the first code blockcomprises a positive integer number of bit(s), and the first bit blockcomprises a positive integer number of bit(s); when channel decodingfails, at least X2 bit(s) in the first bit block can be used fordecoding of the first code block with combining, the first informationis used for determining the X2 bit(s), and the X2 is a positive integer;or, the first information is used for determining that the X1 bit(s)cannot be used for decoding of the first code block with combining whenchannel decoding fails; the first information and the first radio signalare both transmitted through an air interface; the first radio signal istransmitted through a Physical Downlink Shared Channel (PDSCH), thechannel coding is Low Density Parity Check Code (LDPC) coding.
 16. Thesecond-type communication node according to claim 15, wherein the secondtransceiver transmits a first signaling; the first signaling is used forindicating time-frequency resources occupied by the first radio signal,a number of resource elements included in the time-frequency resourcesoccupied by the first radio signal is used for determining a number ofbits included in the first code block, and the first signaling istransmitted through the air interface; the first radio signal belongs toa first HARQ process, and the first information is used for determininga number of bits in the first HARQ process that can be used for decodingwith combining.
 17. The second-type communication node according toclaim 15, wherein the second transceiver transmits a second signaling;the first transmitter transmits a second radio signal; the secondsignaling is used for determining X3 bit(s) in the first bit block, andthe X3 bit(s) is(are) used for generating the second radio signal; theX2 bit(s) comprise(s) the X3 bit(s), or a redundancy versioncorresponding to the X3 bit(s) is equal to 0; the second signaling andthe second radio signal are transmitted through the air interface. 18.The second-type communication node according to claim 15, wherein thefirst information is used for determining a target MCS set from P MCSsets, an MCS employed by the first radio signal is one MCS in the targetMCS set, each of the P MCS sets comprises a positive integer number ofMCSs, any two of the P MCS sets are different, and the P is a positiveinteger greater than
 1. 19. The second-type communication node accordingto claim 15, wherein the second transceiver receives second information;the first information is used for determining a first threshold, aprobability that a transport block carried by the first radio signal iserroneously decoded does not exceed the first threshold, the firstthreshold is a positive real number, the second information is used forindicating a channel quality measured based on the first threshold, andthe second information is transmitted through the air interface.
 20. Thesecond-type communication node according to claim 15, wherein the firstbit block is obtained as a sequential output of channel coding of thefirst code block, the X2 bit(s) is(are) X2 consecutive bits in the firstbit block, and a start position of the X2 bit(s) in the first bit blockis predefined.